package com.scnu.servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.scnu.dao.BookManager;
import com.scnu.po.Book;

public class BookDetail extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public BookDetail() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doPost(request, response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		if(request.getParameter("id")!=null){//传id
			int id=Integer.parseInt(request.getParameter("id"));
			BookManager bm=new BookManager();
			try {
				Book book=bm.selectbook("id", id);//根据id获取图书信息
				request.setAttribute("book", book);
				request.getRequestDispatcher("/shopper/bookDetail.jsp").forward(request, response);
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}else if(request.getParameter("ISBN")!=null){
			String ISBN=request.getParameter("ISBN");
			BookManager bm=new BookManager();
			try {
				Book book=bm.selectbook("ISBN", ISBN);//根据id获取图书信息
				request.setAttribute("book", book);
				request.getRequestDispatcher("/shopper/bookDetail.jsp").forward(request, response);
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
		}
		
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
